Electrical fixtures and their attachment to conduits.



G. W. ABBOTT & H. R. GILSON. ELECTRICAL FIXTURES AND THEIR ATTACHMENT TO CONDUITS.

APPLICATIdN FILED MAY 6, 1913.

Fatented Feb. 9,1915.

UNITED STATES PATENT CHAUNCEY w. snow, or AUBURN, m Yonx, AND HENRY B. ots ioiebt uanm,

PENNSYLVANIA, ASSIGNOB-S TO, HATIONAL'IBTAL momma comm. as suresunon, PENNSYLVANIA, aconrommon or rmxsnvam' ELECTRICAL FEW A THEE AMAGHW TO Application med m a, 1913. semi so. disses.

"To all whom it'may concern:

ed or discovered certain new and wiul improvements in Electrical Fixtures and Their Attachment to Conduits, of which improvements the following is a specificstiou.

@ur invention relates to electrical instel letions wherein switches, sockets, rosettes, and similar electrical fixtures are connected to electrical conductor conduits, and particularly to do with such fixtures when used with metal conduits.

The object oi our invention is to provide a simple and un'efficient means for counsel;- iiig such fixtures to sucli conductor couduits, the arrangement being such as to eliminate the noce$ity of manuiacturiug ssrious forms oi a given lixture, difieriug only in their provision for attachment one or more conductor conduits.

In the accompanying drawing. Wliicli forms part of our specification, we leave illustrated two embodiments of our invention. t

Figure lis a central sectional view oi" 2:. socket 'and electrical conductor conduit the socket being secured to the end of the conduit; Fig. 2 is an end view of the socket shown in Fig. 1; Fig. 3 is a top plan'view of the socket and conduit shown in 13 Fig. {is a view similar to Fig. i, but showing a rosette secured to an intermediate portion of the conduit; and Fig. 5 is o perspective 'view of the connecting plate shown in several other figures,- the slot-closing lug Doing partly bent ofi. w,

Like numeralsu-e used to designate like parts in the several res."

The form (if-conduit illustrated l erein is of a general elliptical shape, and consists oil a semi-elliptical body strip 1 and a similarly shaped cover strip 2 adapted to snap noon the body strip. Inmaking installations of such conduits the body strip is usually secured in its desired position. the'electricel conductors (such as 3, 4) laid therein and the cover strip then snapped upon the body strip. It will be apparent however that our specification of letters Eltent. a

"ill so desired, lie secured to a or 9.

e s nces FBlJJQ, 1915;

invention is also applicable lo other formsoc of conduits tliau inst shown herein.

A complete electrical installation em liodying oui' invention is illustrated in 1, 2 and 3, whereiii a lamp socket is slim-m attached to the end of the conduit 1, 2, and for the sake of additional security, tlie cure is also attached to the Wall The lam socket comprises o clock of insulitiou odaptedto fit into the conduit strip 1, e shell '3, end suitalole conducting elements 8 9., The socketissui'rcunded 4 icy o. oody of insulation ill, whiclilios, eu tendiug' from one side to the otliei' tliereoi','

o groove or slo' 11 adapted to receive' tlie conduil: i. 2. The conduit may iermiuete witliin sucl: slolz, it

ill") I Y'L AT 7 $1 i n may extend on use it snows 2 to lee described; The we euiiiloy r sttucl iug said iimure "o l conduilsg and which we simple lee-tire 'ZGT ElllS purpose, consist of a p extending lieueut to insulation lDlflEll ill on escli o the slot ll, as by means of screws 12 is QZF-Qblf? of ills cooll as oose the block ill, cad l og en side of the slot. llfelompii one u u:

solid is 1,2,witlaiu ilie slot. oud-eccordi gig ilfiemxlure 31o il -4e conduit. illie 12 support oi o screw 1 us sliowii iii- Fig. 21: altliougli it will-loo s edily nudes sucli attachment or (Elm ulste lo the Well, not necessoiiu in iusiclliit'icnc sellers theelecdsicel fixture adds o relatively smell'weiglit to time conduit. in such installations tlie clamping plate cud iiseii serves "so uiiucli time fixture to cow 'duiti. (The, emb diment o1? cue invention illustrated A} shows o porceleiu is. secured to a plate 12% which is moi utteclied "to well 5 As lie seenflherosetie 30 loss, adisoent' to'tlzo well to which is attached, an enlarged con: cavity or recess wliichl'is closed byzueans' of the clamping er attachment plate 12. Such closure is of en edvantege as a precaution against fire. a

The practice iii-manuiacturing electrical fixtures comprising in part clocks of porcelain or ctker insulating material and adapted to lie used in connection with mm "doctor conduits, has beam-to yrovide s pinprising rality of 'ure i ergenmn enie fering only} in their provision for attachment to one or more conduits. For example, when,

,lanipfscckets such "as shown in Figs. 1-, 2 and 3 of the drawing, are to be used at the end vie ond t, he b c o li et n s.

both for the menufacturer and dealer. To

eliminate the inconvenience and expense arising from-such-practice, weprovide one type of fixture with raw; tion-blcck for-{connection to a plurality of conduits, endprovidenmeans. for closing a such conduit-receivingopeningsas may not be used in a giveninstallation. In the illustrative embodiments of our invention the insulation blocks are .m'ovided. with two conduit receiving openings, or, more specifically, with e continuous groove. 0m preferredme'ans for closing the unused openingeonsists ofa; lug 1.5.forn1edes an integral part of the plate ?l-2,but .:1 r I therefrom, so that itmay be readily broken from'the plate'by bending it to the plane thereof. in Fig. l thelug i5 is shown as closing oneend of the slot .11; in Fig. tithe lug is partly bentto the plane of the plate; and in'Fig. 4; the lughas been entirely broken from the plate leaving the slot open so that thefixture may be at an intermediete point of the conduit. V

We claim as curinvention; I ,H v

- 1. An electrical conductor ure coprisinginpart a block of insulation? forming a nail around a centrally disposed sided recess, a plurality oi openings at the margin of said wall edapted to receive electrical conductor conduits, a plate secured to blochand closing. on open'sideof said recess, and meensattached ,toseid plate and extending at anengle theretofor closing one of said conduit ivingdopenin'gs .2. An, electrical ,dueton. fixture comin part a block of insulation forming n wal sided r,- e plurality of. openings at the margin-of sold well adopted to receive else eing known as a in its. insuleopenarounde centrally disposed ope mar,

tricaliionductorcoriduits, a plate secured to 'j'sai'd block and closing an open side of said recess, said-plate being provided with an upturned'lu'g closing one of said conduit- 1 receiving openings.

3. The combination of an electrical fixture comprising in part a block of insulation forming a wall around a central] disposed open-sided recess, a plurality 0 conduit receiving openings at the margin of said wall, an electrical conductor conduit extending into one of said openings, 9. plate secured to mid block lying in the general plane of said conduit and closing on open side of saidreess and of the conduit-receivinig openingsend means attached to said plate for closing an otherwise exposed condint-receiving opening.-

t. The combination of on electrical condoctor conduit, an electrical fixture secured toe side of said conduit at-an open end thereof, saidfixture being provided with a slot extending from one side to the other thereof adapted to receive said conduit, and said conduit terminating within said slot, end a-single means for securing said fixture to said conduit and for closing the open end for connecting an electrical fixture to an electrical conduotor'conduit, such fixture having a continuous conduit-receiving slot therein, seid platebeing provided with an integral, slot-closing lug partially severed therefrom and extending at an angle to the plane thereof, said lug adapt to be broken from said plate by bending it ward the plane thereof. l'n testimony'wh our hands p p @HAUNGEY W. ABE.

RGHJSON.

roof we have hereunto wt 

